/* .nav {
    overflow: hidden;
} */

.nav .sk {
    /* position: absolute;
    left: 190px;
    top: 40px; */
    /* border-bottom: 2px solid #c81523; */
}

.nav .sk .sk-list {
    float: left;
}

.nav .sk .sk-com {
    float: right;
}

.sk-list ul li {
    float: left;
}

.sk-list ul li a {
    /* display: block; */
    line-height: 47px;
    padding: 0 30px;
    font-size: 16px;
    stroke-width: 700;
    color: #000;
}

.sk-com ul li {
    float: left;
}

.sk-com ul li a {
    /* display: block; */
    line-height: 49px;
    padding: 0 15px;
    font-size: 14px;
}

.sk-com ul li:last-child a::after {
    content: '\e91e';
    font-family: 'icomoon';
}

.box_bd .bd_con ul li {
    overflow: hidden;
    float: left;
    margin-right: 13px;
    width: 290px;
    height: 460px;
    border: 1px solid transparent;
}

.box_bd .bd_con ul li:nth-child(4n) {
    margin-right: 0;
}

.box_bd .bd_con ul li:hover {
    border: 1px solid #c81523;
}